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REVENUE - Revenue by Type (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Disaggregation of Revenue [Line Items]
Net revenue	$ 6,319	$ 5,339	$ 5,163
Pharmaceutical and Biopharmaceutical Market
Disaggregation of Revenue [Line Items]
Net revenue	2,224	1,754	1,604
Chemical and Energy Market
Disaggregation of Revenue [Line Items]
Net revenue	1,328	1,154	1,199
Diagnostics and Clinical Market
Disaggregation of Revenue [Line Items]
Net revenue	938	787	785
Food Market
Disaggregation of Revenue [Line Items]
Net revenue	601	517	486
Academia and Government Market
Disaggregation of Revenue [Line Items]
Net revenue	576	526	474
Environmental and Forensics Market
Disaggregation of Revenue [Line Items]
Net revenue	652	601	615
Instrumentation
Disaggregation of Revenue [Line Items]
Net revenue	2,657	2,249	2,150
Non-Instrumentation and Other
Disaggregation of Revenue [Line Items]
Net revenue	$ 3,662	$ 3,090	$ 3,013

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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